Umbrella gear housing



FIG. 1 is a perspective view of an umbrella gear housing showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side view thereof, the left side view being identical thereto;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a top plan view thereof. 

The ornamental design for an umbrella gear housing, as shown and described. 